A little background - I live off-grid, back in the woods and routinely pull ticks off of me. This year has been especially problematic as we had a very mild winter in KY last year.

I also read the NCBI article and ordered some stevia. I certainly had nothing to lose. But, finding the plant, yielded no results for me. I looked everywhere! I did find the seeds though at http://www.rareseeds.com/stevia/ and have been growing it ever since. Not only for tinctures but as a natural sweetener as well.